Notification custom layouts: keep settings icon and label together in rtl layout.

chrome/android/java/res/values-v17/styles.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright 2014 The Chromium Authors. All rights reserved.
      Use of this source code is governed by a BSD-style license that can be
      found in the LICENSE file. -->
 
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Q: Why put style resources under values-v17/ ?
          A: Problem:
             1. paddingStart causes a crash on Galaxy Tab&Note b/8351339.
             2. So we wrote a build script(generate_v14_compatible_resources.py) to convert
@@ skipping 306 matching lines @@
     </style>
     <style name="WebNotificationButton"
         parent="@android:style/Widget.DeviceDefault.Button.Borderless.Small">
         <!-- textColor from the 4.4.4 notification_action.xml - no public aliases. -->
         <item name="android:textColor">#ccc</item>
     </style>
     <style name="WebNotificationSettingsButton"
         parent="@style/WebNotificationButton">
         <item name="android:textAppearance">@style/TextAppearance.StatusBar.EventContent.Line2</item>
         <item name="android:paddingStart">40dp</item>
+        <!-- Margin at the end to avoid overlap with the small icon. -->
+        <item name="android:layout_marginEnd">24dp</item>
     </style>
     <style name="WebNotificationSettingsIcon">
         <item name="android:layout_marginStart">8dp</item>
     </style>
     <style name="WebNotificationLargeIcon">
         <item name="android:background">@drawable/notification_template_icon_bg</item>
     </style>
     <style name="WebNotificationSmallIcon">
         <item name="android:alpha">0.6</item>
     </style>
@@ skipping 150 matching lines @@
     <style name="UpdateMenuBadge">
         <item name="android:layout_height">@dimen/menu_badge_size</item>
         <item name="android:layout_width">@dimen/menu_badge_size</item>
         <item name="android:layout_gravity">end|bottom</item>
         <item name="android:layout_marginBottom">14dp</item>
         <item name="android:focusable">false</item>
         <item name="android:importantForAccessibility">no</item>
         <item name="android:visibility">invisible</item>
     </style>
 </resources>